EP0199551A2 - Condensateur imprégné d'huile - Google Patents

Condensateur imprégné d'huile Download PDF

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Publication number
EP0199551A2
EP0199551A2 EP19860302885 EP86302885A EP0199551A2 EP 0199551 A2 EP0199551 A2 EP 0199551A2 EP 19860302885 EP19860302885 EP 19860302885 EP 86302885 A EP86302885 A EP 86302885A EP 0199551 A2 EP0199551 A2 EP 0199551A2
Authority
EP
European Patent Office
Prior art keywords
oil
phenyl
impregnated
capacitor
impregnated capacitor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP19860302885
Other languages
German (de)
English (en)
Other versions
EP0199551A3 (en
EP0199551B1 (fr
Inventor
Atsushi Sato
Shigenobu Kawakami
Keiji Endo
Hideyuki Dohi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eneos Corp
Original Assignee
Nippon Petrochemicals Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP8217885A external-priority patent/JPS61241907A/ja
Priority claimed from JP8217985A external-priority patent/JPS61241908A/ja
Application filed by Nippon Petrochemicals Co Ltd filed Critical Nippon Petrochemicals Co Ltd
Publication of EP0199551A2 publication Critical patent/EP0199551A2/fr
Publication of EP0199551A3 publication Critical patent/EP0199551A3/en
Application granted granted Critical
Publication of EP0199551B1 publication Critical patent/EP0199551B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01GCAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G4/00Fixed capacitors; Processes of their manufacture
    • H01G4/002Details
    • H01G4/018Dielectrics
    • H01G4/20Dielectrics using combinations of dielectrics from more than one of groups H01G4/02 - H01G4/06
    • H01G4/22Dielectrics using combinations of dielectrics from more than one of groups H01G4/02 - H01G4/06 impregnated
    • H01G4/221Dielectrics using combinations of dielectrics from more than one of groups H01G4/02 - H01G4/06 impregnated characterised by the composition of the impregnant
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/31504Composite [nonstructural laminate]
    • Y10T428/3154Of fluorinated addition polymer from unsaturated monomers
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/31504Composite [nonstructural laminate]
    • Y10T428/31678Of metal
    • Y10T428/31681Next to polyester, polyamide or polyimide [e.g., alkyd, glue, or nylon, etc.]

Definitions

  • the present invention relates to an oil-impregnated capacitor. More particularly, it is concerned with a capacitor impregnated with aromatic hydrocarbons which contains 1-phenyl-1-methylphenylethane having a specific isomer ratio.
  • CSV corona discharge start voltage
  • CEV corona discharge extinction voltage
  • the present invention resides in an oil-impregnated capacitor made by winding at least one plastic film impregnated with an electrical insulating oil comprising 1-phenyl-1-methylphenylethane in which 1-phenyl-1-(4-methylphenyl)ethane and 1-phenyl-1-(2-methylphenyl)ethane are present in amounts of not less than 70 percent and not more than 15 percent, respectively, based on the total weight of the 1-phenyl-1-methylphenylethane.
  • the PTE prefferably has the following isomer composition; not less than 70 wt.% (in PTE) of 1-phenyl-1-(4-methylphenyl)ethane (hereinafter referred to as "p-isomer”) and not more than 15 wt.% (in PTE) of 1-phenyl-1-(2-methylphenyl)ethane (hereinafter referred to as "o-isomer").
  • the typical composition is 70-90 wt.% of p-isomer, 2-15 wt.% of o-isomer and 2-30 wt.% of m-isomer.
  • the electrical insulating oil of the present invention may contain aromatic hydrocarbons other than the PTE.
  • the PTE content is preferably 30 to 100 wt.%, more preferably 30 to 80 wt.%, based on the total weight of the insulating oil.
  • the aromatic hydrocarbon preferably used in combination with the PTE in the present invention is an aromatic hydrocarbon having two condensed or noncondensed type aromatic rings, except PTE.
  • Examples are diarylalkanes, alkylbiphenyls and alkylnaphthalenes.
  • diarylalkanes are mentioned 1-phenyl-1-(dimethylphenyl)ethane, 1,1-di(methylphenyl)-ethane, 1-phenyl-l-ethylphenylethane, 1-phenyl-1-isopropylphenylethane, 1-phenyl-2-isopropylphenylethane, diphenylmethane, methylphenyl-phenylmethane, di(methylphenyl)methane, dimethylphenyl-phenylmethane, ethylphenyl-phenylmethane, and isopropylphenyl- phenylmethane.
  • alkylbiphenyls are mentioned monoisopropylbiphenyl and diisopropylbiphenyl.
  • alkylnaphthalenes are mentioned monoisopropylnaphthalene and diisopropylnaphthalene.
  • the capacitor of the present invention is made by winding both a metallic foil such as an aluminum foil as an electrode and a plastic film to form a capacitor element and then impregnating it with an electrical insulating oil in a known manner.
  • plastic film there is used such a film as a polyester, polyvinylidene fluoride or polyolefin film.
  • a polyolefin film and particularly preferred is a polypropylene film.
  • An insulating paper may be used together with the plastic film.
  • a metallized film capacitor made by winding a metallized plastic film with a metal such as zinc vapor-deposited thereon is also included in the present invention.
  • the oil-impregnated capacitor of the present invention can have a sufficiently long service life and fulfill a superior performance even at a temperature as low as -50°C.
  • the oil-impregnated capacitors thus obtained were each electrically charged at a.potential gradient of 70 V/p at a low temperature of -50°C, and the time until breakdown of each capacitor was determined. More specifically, with respect to one insulating oil there were prepared ten capacitors impregnated therewith and their breaking times were determined, then out of ten measured values obtained, the highest and lowest values were excluded and a mean value of the remaining eight measured values was used as a breaking time of the capacitor concerned. Results are as set out in Table 1. Experiment-II
  • the insulating oil Nos. 6 and 9 in Table 2 is the same as the insulating oil Nos. 6 and 9 in Table 1.
  • the viscosity of PTE is changed according to isomer ratios.
  • the viscosity of No.6 oil in Table 1 and 2, for example, is 4.0 cst at 30°C.
  • PTE having the same isomer ratio as that shown in No.6 in Table 3 was mixed in various ratios with PXE, monoisopropylbiphenyl (MIPB hereinafter, trade name: TANATEX CG, product of SYBRON Co., Ltd.), diisopropylnaphthalene (DISN hereinafter, trade name: KIS-400, a product of Kureha Chemical Industry Co., Ltd.) and 1-phenyl-2-isopropylphenylethane (PIPE hereinafter, trade name: KIS-1000, a product of Kureha Chemical Industry Co., Ltd.), to prepare electrical insulating oils.
  • MIPB monoisopropylbiphenyl
  • DISN diisopropylnaphthalene
  • KIS-400 1-phenyl-2-isopropylphenylethane
  • PIPE 1-phenyl-2-isopropylphenylethane
  • capacitor element Two polypropylene films each 14 u thick were put one upon another and the resulting laminate was wound together with a 7 p thick aluminum'foil as an electrode to obtain a capacitor element.
  • the capacitor element was impregnated with each of the above electrical insulating oils in a known manner to obtain oil-impregnated capacitors each having a capacity of about 0.4 ⁇ F.
  • the oil-impregnated capacitors thus obtained were each electrically charged at a potential gradient of 70 V/u at a low temperature of -50°C, and the time until breakdown of each capacitor was determined. More specifically, with respect to one insulating oil there were prepared ten capacitors impregnated therewith and their breaking times were determined, then out of ten measured values obtained, the highest and lowest values were excluded and a mean value of the remaining eight measured values was used as a breaking time of the capacitor concerned.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
EP19860302885 1985-04-19 1986-04-17 Condensateur imprégné d'huile Expired - Lifetime EP0199551B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP82179/85 1985-04-19
JP8217885A JPS61241907A (ja) 1985-04-19 1985-04-19 油浸コンデンサ−
JP8217985A JPS61241908A (ja) 1985-04-19 1985-04-19 油含浸コンデンサ−
JP82178/85 1985-04-19

Publications (3)

Publication Number Publication Date
EP0199551A2 true EP0199551A2 (fr) 1986-10-29
EP0199551A3 EP0199551A3 (en) 1988-04-13
EP0199551B1 EP0199551B1 (fr) 1991-06-05

Family

ID=26423190

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19860302885 Expired - Lifetime EP0199551B1 (fr) 1985-04-19 1986-04-17 Condensateur imprégné d'huile

Country Status (4)

Country Link
US (1) US4716084A (fr)
EP (1) EP0199551B1 (fr)
CA (1) CA1277131C (fr)
DE (1) DE3679588D1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2720232A1 (fr) * 2011-06-07 2014-04-16 JX Nippon Oil & Energy Corporation Composition d'huile d'isolation électrique présentant d'excellentes propriétés à basse température
EP2811488A4 (fr) * 2012-02-03 2016-04-06 Jx Nippon Oil & Energy Corp Composition d'huile isolante électriquement dotée d'excellentes propriétés dans une large région de températures

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6585917B2 (en) 2001-04-12 2003-07-01 Cooper Industries, Inc. Dielectric fluid

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4348713A (en) * 1980-05-07 1982-09-07 General Electric Company Impregnants for metallized paper electrode capacitors
US4355346A (en) * 1979-03-29 1982-10-19 Mcgraw-Edison Company Electrical apparatus having an improved dielectric system
US4506107A (en) * 1983-12-03 1985-03-19 Nippon Petrochemical Company, Limited Electrical insulating oil and oil-filled electrical appliances

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1215001A (en) * 1967-01-16 1970-12-09 Shell Int Research Improvements in or relating to insulating oils
GB2032950A (en) * 1978-09-07 1980-05-14 Kureha Chemical Ind Co Ltd Electrical Insulating Oil
JPS5750710A (en) * 1980-09-11 1982-03-25 Nippon Petrochemicals Co Ltd Electric insulating coil composition
JPS6044906A (ja) * 1983-08-19 1985-03-11 呉羽化学工業株式会社 金属蒸着化プラスチックフイルムキャパシタ−用含浸油

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4355346A (en) * 1979-03-29 1982-10-19 Mcgraw-Edison Company Electrical apparatus having an improved dielectric system
US4348713A (en) * 1980-05-07 1982-09-07 General Electric Company Impregnants for metallized paper electrode capacitors
US4506107A (en) * 1983-12-03 1985-03-19 Nippon Petrochemical Company, Limited Electrical insulating oil and oil-filled electrical appliances

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2720232A1 (fr) * 2011-06-07 2014-04-16 JX Nippon Oil & Energy Corporation Composition d'huile d'isolation électrique présentant d'excellentes propriétés à basse température
EP2720232A4 (fr) * 2011-06-07 2014-12-10 Jx Nippon Oil & Energy Corp Composition d'huile d'isolation électrique présentant d'excellentes propriétés à basse température
EP2811488A4 (fr) * 2012-02-03 2016-04-06 Jx Nippon Oil & Energy Corp Composition d'huile isolante électriquement dotée d'excellentes propriétés dans une large région de températures

Also Published As

Publication number Publication date
CA1277131C (fr) 1990-12-04
EP0199551A3 (en) 1988-04-13
US4716084A (en) 1987-12-29
DE3679588D1 (de) 1991-07-11
EP0199551B1 (fr) 1991-06-05

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